Combination suction elevator and loader.



R. A. SALLEE.

COMBINATION SUGTKON ELEVATOR AND LOADER.

APPLICATION FILED MAB..13,1913.

Patented June 23, 1914.

'ITNESS ES:

ROBERT .A, SALLEE, F MIDPQETOWQI T CALIFDRNTA.

COMBI'HhTION ELEVATCB AND LOADER.

Specification of Letters Patent. Patented J 11113 23, 1914.

Application filed Karen 15, lme-' 'fleriil No. man.

Te -all whom it mwy'cohoem:

Be itknown that I, Rosana A. Sal-mm, a citizen of the United States, residing at Middletown in the county of Lake and State or Gaiifiornia, have invented new and mean Improvements in Combination Suction Elevators and Loaders, of which the following isa specification. Thl'sin'vention relates to a combined suction elevator and loader which is particularly adapted for elevating granular materials, such as sand, gravehnnd the like.

The object of the invention is to produce a imp elerat r end loader, which is: simple, inexpensive, and substantial in construction, and which is provided with means for automaticall and continuously discharging material delivered to the receiving chamber of theapparatus.

Another object is to provide a secondary pressure chamber from where the material may be further elevated or conveyed by pres- The invention consists o hereinafter more fully described and claimed,

sure to the point of dischar e.

the parts and therconstruction and combination of parts as having reference to the accompanying draw- 111%,111 whichigure 1 is a central vertical section of the device. Fig. 2-is a plan view of the appa I ratus.

This invention relates to a suction elevator and loader which has proven particularly adaptable for elevating such materials as sand, gravel, and the like.

The apparatus consists of a cylinder or container A, the upper ortion of which is connected b a pi e 2 wit a suitable vacuum pump, not ere s own. The upper portion of the cylinder connected with the vacuum source is separated from the lower portion of the cylinder, which is large enough to form a temporary container for the elevated material, by a perforated plate or screen 3;

the object of this screen 3 being to preventany of the material entering through the elevating pipe 4 from escapin through the suction pipe. The bottom 0 the elevator is provided with a discharge opening 5,

cylinder in regular order, as shown, the spac-,

mg of the pistons being such that the ends of the cylinder will be closed at all times, thus preventing admission of air to the vacuum chamber. For the purpose of dischargin the air entering the upper end of the dis arge cylinder 6, previous to the admission of each individual piston member,

it is desirable to provide a valve mechanism such as is indicated at 10, for the purpose of discharging the air admitted between the pistons. The valve mechanism here shown consists of a radially disposed valve 11,. operable through themedium of the pivoted lever 12 which is 1n turn elevated b each individual piston 9. Any air admitted will be compressed against the radially disposed valve member when this is in t e inner position, the air being discharged through the opening 13. A further movement of the piston member will then engage the lever 12 and raise the valve member 11, thus permitting a'iorward move ment of the piston. The 'material ischarged into the cylinder will thus drop through the discharge opening 5' into the annular discharge cylinder 6, from where it will be conveyed by the individual piston members and finally discharged as at 14 into the lower portion of the compression chamber B. From the receiving chamber or compression chamber, indicated at B, the material maybe conveyed through chutes or similar apparatus by gravity to the point of discharge. In some instances, where it is desired to further elevate the material it will only be necessary to connect the chamber through a pi e 15 with-a source of pressure supply, suc as an air compressor, not hereshown. The material may then be conveyed by pressure through pipe 16 to a higher elevation, or to a distant point of discharge, being forced through the line by l the medium of the air pressure supplied by the ipe 15. I

The apparatus here shown is simple in construction and automatic in operation;

the automatic discharging mechanism here.

shown making it possible to continuously discharge the material elevated by vacuum, thus producing a high efliciency, as practi ca'tlyno air is admitted during the discharge of the material. The application of means for further. elevating the material or con veying it to distant points of discharge gives the apparatus a great range of utility, as it is obvious that theapparatus may be employed for a great variety of purposes.

The materials and finish of the several parts of the mechanism are such as. judg ment and experience of the manufacturer nay dictate.

I Wish it understood that various changes in form, proportions and-minor details of construction may be resorted to within the scope of the appended claim, and that I do not wish to limit myself to the specific design and construction here shown.

Having thuadescribed my invention, what I claim and desire to secure by Letters Patent is:

In a suction elevator and loader, the com-- bination with a suction chamber having means for conveying material thereto and having a discharge opening formed in its lower cnd, of an openended cylinder connected midway of its ends with the discharge opening, an endless cable passing. through said cylinder, means for supporterable in conjunction with'said valve, and

a lever pivotally mounted in the cylinder adapted to be actuated by each individual piston member to lift the slide valve.

In testimony whereof I have hereunto set my hand in the presence of two subscribs ing witnesses.

ROBERT A. SALLEE.

Witnesses.

JOHN H. Hannmc, W. W. HEALEY. 

